Best power bank deal: Save 29% on CUKTECH 15 Ultra 20000mAh charger

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SAVE $34: As of April 23, the CUKTECH 15 Ultra Power Bank (20000mAh, 140W PD3.1, Smart Display) is on sale for $85.19 at Amazon, down from $119.99. The price includes a 20% on-site coupon, bringing total savings to 29%.

I want fewer cords, faster charging, and a backup plan that actually keeps up. Right now, CUKTECH’s 15 Ultra Power Bank is on sale for $85.19 at Amazon — that’s 29% off its usual $119.99 price with a 20% coupon applied at checkout. It’s easily one of the better deals I’ve seen on a power bank that isn’t just pretending to be high-powered.

This one puts out up to 140W via PD3.1, which means it’s not just for phones. I’ve used it to top up a MacBook, charge a Steam Deck, and still have juice left to keep my phone alive. It’s also smart enough to show what it’s doing, thanks to a sharp 1.3-inch TFT display. You can actually see what protocol it’s using and whether it’s cooking or coasting.

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I think my favorite feature is its ability to recharge itself at 165W in Beast Mode. You get 70% charge in 20 minutes, which is great if you’re the kind of person who packs five minutes before heading to the airport.

Specifications:

  • Price: $85.19 $119.99

  • Retailer: Amazon

  • Battery Capacity: 20000mAh

  • Output Power: Up to 140W PD3.1, 165W total input

  • Ports: 3 x USB-C

  • Display: 1.3-inch Smart TFT screen

  • Compatibility: iPhone 16/15/14/13, Samsung, MacBook, Dell, Xiaomi, and more

  • Charging Features: PD3.1, Beast Mode Self-Charging, ADC 2.0, Built-in 3.2-foot PD3.1 cable

It works with all the charging standards that matter: PPS, QC, PD3.1, FCP, SCP, and MiPPS. And yes, it includes a 3.2-foot cable that actually supports the full power output — not one of those afterthought cords that melts under pressure.

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In my opinion, most power banks are either big and slow or small and underpowered. This one manages to be neither, and now it’s under $90. If you travel with more than one device, this is the kind of thing you’ll be glad you packed.